{"id":464,"date":"2019-03-21T09:43:34","date_gmt":"2019-03-21T02:43:34","guid":{"rendered":"http:\/\/bluechem.com.vn\/?p=464"},"modified":"2019-03-21T09:43:34","modified_gmt":"2019-03-21T02:43:34","slug":"vi-sao-phai-ve-sinh-cam-bien-oxy-bo-loc-khi-thai-catalytic-dinh-ky","status":"publish","type":"post","link":"https:\/\/bluechem.com.vn\/vi\/vi-sao-phai-ve-sinh-cam-bien-oxy-bo-loc-khi-thai-catalytic-dinh-ky\/","title":{"rendered":"V\u00cc SAO PH\u1ea2I V\u1ec6 SINH C\u1ea2M BI\u1ebeN OXY B\u1ed8 L\u1eccC KH\u00cd TH\u1ea2I CATALYTIC \u0110\u1ecaNH K\u1ef2?"},"content":{"rendered":"

<\/p>\n

1. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i Catalytic Converter<\/strong><\/div>\n
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B\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i, hay g\u1ecdi m\u1ed9t c\u00e1ch \u201ckhoa h\u1ecdc\u201d h\u01a1n l\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c, \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o nh\u1eefng n\u0103m 1950, n\u00f3 \u0111\u01b0\u1ee3c ph\u00e1t minh b\u1edfi m\u1ed9t k\u1ef9 s\u01b0 ng\u01b0\u1eddi Ph\u00e1p, \u00f4ng\u00a0Eugene Houdry<\/i>. Tuy nhi\u00ean, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i n\u00e0y ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i v\u00e0o nh\u1eefng n\u0103m 1975 \u2013 th\u1eddi \u0111i\u1ec3m m\u00e0 nh\u1eefng b\u1ed9 lu\u1eadt v\u1ec1 h\u1ea1n ch\u1ebf kh\u00ed th\u1ea3i v\u00e0\u00a0b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng<\/a>\u00a0\u0111\u01b0\u1ee3c th\u1ef1c thi m\u1ed9t c\u00e1ch c\u1ee9ng r\u1eafn h\u01a1n.\u200b<\/div>\n
\u200b<\/div>\n
C\u00f4ng vi\u1ec7c ch\u00ednh c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i (Catalytic Converter) ch\u00ednh l\u00e0 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i (th\u01b0\u1eddng l\u00e0 NO, NO2, CO, HC\u2026) th\u00e0nh nh\u1eefng ph\u00e2n t\u1eed h\u00f3a h\u1ecdc kh\u00e1c \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n (nh\u01b0 N2, CO2, H2O\u2026) tr\u01b0\u1edbc khi n\u00f3 th\u1ef1c s\u1ef1 r\u1eddi kh\u1ecfi\u00a0h\u1ec7 th\u1ed1ng x\u1ea3 th\u1ea3i<\/a>\u00a0c\u1ee7a chi\u1ebfc xe. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn c\u00f3 c\u1ea5u t\u1ea1o r\u1ea5t \u0111\u01a1n gi\u1ea3n, nh\u01b0ng \u1ea3nh h\u01b0\u1edfng c\u1ee7a n\u00f3 \u0111\u1ebfn vi\u1ec7c gi\u1ea3m thi\u1ec3u kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng l\u00e0 v\u00f4 c\u00f9ng to l\u1edbn\u2026\u200b<\/div>\n
\u200b<\/div>\n
Th\u1eadt v\u1eady, n\u1ebfu n\u00f3i m\u1ed9t c\u00e1ch n\u00f4m na, n\u00f3 l\u00e0 m\u1ed9t c\u00e1i h\u1ed9p b\u1eb1ng kim lo\u1ea1i c\u00f3 ch\u1ee9a m\u1ed9t chi\u1ebfc\u00a0l\u00f5i l\u1ecdc<\/a>\u00a0d\u1ea1ng t\u1ed5 ong \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng Ceramic ho\u1eb7c kim lo\u1ea1i. Chi\u1ebfc l\u00f5i l\u1ecdc n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c ph\u1ee7 l\u00ean m\u1ed9t l\u1edbp ch\u1ea5t x\u00fac t\u00e1c gi\u00fap t\u1ea1o ra ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc v\u1edbi c\u00e1c lo\u1ea1i kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i, nh\u1eefng ch\u1ea5t x\u00fac t\u00e1c n\u00e0y th\u01b0\u1eddng l\u00e0 nh\u1eefng kim lo\u1ea1i qu\u00fd hi\u1ebfm nh\u01b0 b\u1ea1ch kim (Platinum), Rhodium, Palladium\u2026 C\u00f3 th\u1ec3 b\u1ea1n ch\u01b0a bi\u1ebft \u0111\u01b0\u1ee3c r\u1eb1ng, c\u00e1i h\u1ed9p b\u1eb1ng kim lo\u1ea1i th\u00f4 k\u1ec7ch kia c\u00f3 ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng Platinum, Rhodium hay Palladium\u2026 c\u00f3 gi\u00e1 tr\u1ecb t\u1eeb v\u00e0i tr\u0103m cho \u0111\u1ebfn h\u00e0ng ngh\u00ecn \u0111\u00f4-la M\u1ef9.\u200b<\/div>\n

2. C\u1ea3m bi\u1ebfn Oxy \u2013 Oxygen Sensor<\/strong><\/p>\n

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T\u1ef7\u00a0l\u1ec7 h\u00f2a\u00a0kh\u00ed (kh\u00f4ng\u00a0kh\u00ed v\u00e0 x\u0103ng) l\u00fd t\u01b0\u1edfng t\u00ednh theo tr\u1ecdng l\u01b0\u1ee3ng cho \u0111\u1ed9ng c\u01a1 l\u00e0 14.7:1. V\u1edbi t\u1ef7 l\u1ec7 n\u00e0y h\u1ed7n h\u1ee3p kh\u00f4ng kh\u00ed v\u00e0 x\u0103ng s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1ed1t ch\u00e1y g\u1ea7n nh\u01b0 ho\u00e0n to\u00e0n khi bugi n\u1eb9t l\u1eeda \u0111\u1ec3 t\u1ea1o ra c\u00f4ng su\u1ea5t t\u1ed1i \u0111a v\u00e0 v\u00e0 kh\u00ed ch\u00e1y s\u1ebd kh\u00f4ng ch\u1ee9a qu\u00e1 nhi\u1ec1u h\u00f3a ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng. N\u1ebfu v\u00ec m\u1ed9t l\u00fd do n\u00e0o \u0111\u00f3 l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed tr\u1edf n\u00ean \u00edt h\u01a1n qui \u0111\u1ecbnh hay h\u00f2a kh\u00ed d\u01b0 x\u0103ng (rich mixture), l\u01b0\u1ee3ng x\u0103ng d\u01b0 th\u1eeba (CxHy) s\u1ebd b\u1ecb th\u1ea3i ra m\u00f4i tr\u01b0\u1eddng t\u1ea1o n\u00ean \u00f4 nhi\u1ec5m. Tr\u01b0\u1eddng h\u1ee3p ng\u01b0\u1ee3c l\u1ea1i hay h\u00f2a kh\u00ed thi\u1ebfu x\u0103ng (lean mixture), h\u1ed7n h\u1ee3p ch\u00e1y s\u1ebd t\u1ea1o n\u00ean m\u1ed9t h\u00e0m l\u01b0\u1ee3ng nitrogen-oxide (NOx) trong kh\u00ed ch\u00e1y nhi\u1ec1u h\u01a1n m\u1ee9c \u0111\u1ed9 cho ph\u00e9p, h\u00f3a ch\u1ea5t n\u00e0y c\u0169ng g\u00e2y \u00f4 nhi\u1ec5m cho m\u00f4i tr\u01b0\u1eddng. Kh\u00f4ng nh\u1eefng th\u1ebf \u0111\u1ed9ng c\u01a1 c\u00f2n b\u1ecb gi\u1ea3m c\u00f4ng su\u1ea5t, m\u1ee9c ti\u00eau th\u1ee5 nhi\u00ean li\u1ec7u t\u0103ng v\u00e0 g\u1eb7p tr\u1edf ng\u1ea1i m\u1ed7i khi t\u0103ng hay gi\u1ea3m t\u1ed1c.<\/span><\/p>\n

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B\u1ed9 c\u1ea3m bi\u1ebfn oxy b\u1ed1 tr\u00ed tr\u00ean \u0111\u01b0\u1eddng \u1ed1ng tho\u00e1t kh\u00ed ch\u00e1y c\u1ee7a \u0111\u1ed9ng c\u01a1 trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y s\u1ebd cung c\u1ea5p th\u00f4ng tin v\u1ec1 l\u01b0\u01a1ng oxy t\u1ed3n t\u1ea1i (d\u01b0 ho\u1eb7c thi\u1ebfu) trong kh\u00ed ch\u00e1y cho ECU \u0111\u1ec3 computer c\u1ee7a xe c\u00f3 th\u1ec3 k\u1ecbp th\u1eddi \u0111i\u1ec1u ch\u1ec9nh th\u1eddi l\u01b0\u1ee3ng (duration) cung c\u1ea5p x\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng cung c\u1ea5p nhi\u00ean li\u1ec7u cho th\u00edch h\u1ee3p.<\/p>\n

N\u00f3i c\u00e1ch kh\u00e1c n\u1ebfu b\u1ed9 c\u1ea3m bi\u1ebfn Oxy b\u1ecb h\u1ecfng:<\/p>\n

\u2013 \u0110\u00e8n Check Engine n\u1ed5i s\u00e1ng.
\n\u2013 M\u1ee9c ti\u00eau hao nhi\u00ean li\u1ec7u t\u0103ng.
\n\u2013 T\u0103ng t\u1ed1c kh\u00f4ng t\u1ed1t.
\n\u2013 T\u1ed1c \u0111\u1ed9 c\u1ea7m ch\u1eebng kh\u00f4ng \u1ed5n \u0111\u1ecbnh.
\n\u2013 M\u1ee9c \u0111\u1ed9 \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng t\u0103ng.<\/p>\n

Khi xe kh\u00f4ng v\u01b0\u1ee3t qua \u0111\u01b0\u1ee3c \u0111\u1ee3t ki\u1ec3m tra k\u1ef9 thu\u1eadt \u0111\u1ecbnh k\u1ef3 h\u00e0ng n\u0103m (inspection) do h\u00e0m l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t s\u1ed1 h\u00f3a ch\u1ea5t trong kh\u00ed th\u1ea3i (HxCy, NOx, CO, SOx, \u2026 ) v\u01b0\u1ee3t qu\u00e1 tr\u1ecb s\u1ed1 cho ph\u00e9p v\u00e0 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng, th\u01b0\u1eddng ph\u1ea3i thay m\u1edbi b\u1ed9 c\u1ea3m bi\u1ebfn n\u00e0y \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ecnh tr\u1ea1ng l\u00e0m vi\u1ec7c c\u1ee7a \u0111\u1ed9ng c\u01a1. M\u1ed9t s\u1ed1 nh\u00e0 ch\u1ebf t\u1ea1o th\u01b0\u1eddng khuy\u1ebfn c\u00e1o thay m\u1edbi \u0111\u1ecbnh k\u1ef3 c\u00e1c b\u1ed9 c\u1ea3m bi\u1ebfn oxy m\u1ed7i 100,000 miles, b\u1ea5t ch\u1ea5p c\u00f2n t\u1ed1t hay kh\u00f4ng. Tr\u00ean th\u1ef1c t\u1ebf vi\u1ec7c l\u00e0m n\u00e0y kh\u00f4ng c\u1ea7n thi\u1ebft v\u00e0 l\u00e0 m\u1ed9t t\u1ed5n ph\u00ed kh\u00e1 l\u1edbn, kho\u1ea3ng US $100 cho m\u1ed9t b\u1ed9 c\u1ea3m bi\u1ebfn. Do \u0111\u00f3 ki\u1ec3m tra b\u1ed9 c\u1ea3m bi\u1ebfn n\u00e0y tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh thay m\u1edbi l\u00e0 m\u1ed9t vi\u1ec7c l\u00e0m h\u1ee3p l\u00fd. C\u1ea3m bi\u1ebfn oxy th\u01b0\u1eddng b\u1ecb h\u1ecfng do \u0111\u00f3ng nhi\u1ec1u mu\u1ed9i than \u0111\u1ebfn t\u1eeb nh\u1eefng ch\u1ea5t ph\u1ee5 gia c\u1ee7a x\u0103ng (fuel additives) hay nh\u1edbt l\u00e0m tr\u01a1n l\u1ecdt v\u00e0o bu\u1ed3ng \u0111\u1ed1t. Nh\u1eefng d\u1ea5u hi\u1ec7u ban \u0111\u1ea7u cho th\u1ea5y c\u1ea3m bi\u1ebfn oxy kh\u00f4ng c\u00f2n t\u1ed1t n\u1eefa l\u00e0 m\u1ee9c ti\u00eau th\u1ee5 nhi\u00ean li\u1ec7u c\u1ee7a xe b\u1eaft \u0111\u1ea7u t\u0103ng cao (fuel economy drop), m\u00e1y c\u00f3 v\u1ebb y\u1ebfu d\u1ea7n \u0111i (power losing) .<\/p>\n

V\u1eady n\u00ean \u0111\u1ecbnh k\u1ef3 v\u1ec7 sinh c\u1ea3m bi\u1ebfn oxy v\u00e0 B\u1ed9 Catalytic Converter \u0111\u1ecbnh k\u1ef3 m\u1ed7i 50000km l\u00e0 m\u1ed9t trong nh\u1eefng bi\u1ec7n ph\u00e1p \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ea3m bi\u1ebfn, gi\u00fap cho \u0111\u1ed9ng c\u01a1 v\u1eadn h\u00e0nh t\u1ed1i \u01b0u v\u00e0 hi\u1ec7u qu\u1ea3 .<\/p>\n<\/div>\n

<\/p>","protected":false},"excerpt":{"rendered":"

1. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i Catalytic Converter B\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i, hay g\u1ecdi m\u1ed9t c\u00e1ch \u201ckhoa h\u1ecdc\u201d h\u01a1n l\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c, \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o nh\u1eefng n\u0103m 1950, n\u00f3 \u0111\u01b0\u1ee3c ph\u00e1t minh b\u1edfi m\u1ed9t k\u1ef9 s\u01b0 ng\u01b0\u1eddi Ph\u00e1p, \u00f4ng\u00a0Eugene Houdry. Tuy nhi\u00ean, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i […]<\/p>\n","protected":false},"author":5,"featured_media":465,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-464","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/posts\/464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/comments?post=464"}],"version-history":[{"count":0,"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/posts\/464\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/media\/465"}],"wp:attachment":[{"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/media?parent=464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/categories?post=464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bluechem.com.vn\/vi\/wp-json\/wp\/v2\/tags?post=464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}